Thank you for your inquiry and I am happy to assist you with this.
Use cookie-free domains: As per Cloudflare support:
Cloudflare issues cookies for your domain and there isn’t anything you can do about it! It’s also not really anything to worry about.
Non-blocking using “defer” in Performance>Minify>JS settings. You can also try the same Before </head> but make sure to ever it back if you are seeing some breaking on your website.